Roller



Jan. 3, 192s.

Y D. W. BOWE ROLLER 4 Sheets-Sheet l Filed Dec. 5, 1925 Jan.3,l928.

:L vv.EnDvvE ROLLER Filed Deo. s, 1925 4 Sheets-Sheet o Jan. 3, 1928. 1,655,130

` D. w. BOWE ROLLER Filed Dec. 5. 1925 4 Sheets-Sheet 4- vwlcmtoz A f m13 r l mtowugo.

Patented Jan. 3, 1928.

UNITED STATES DAVID W. BOWE, OF DETROIT, MICHIGAN.

ROLLER.

Application led December 3, 1925.

This invent-ion relates to road machines and more particularly to a road finishing machine, the primary object of the invention being to provide a. machine which may be moved over concrete road beds prior to the setting of the concrete to level and pack the concrete.

An important object of the invention is. to provide a deviceof this character which may be adjusted to cause greater or less pressure on thev road surface to meet various conditions.

A further object of the invention is to provide an adjustable strike-oill bar arranged in advance of the roller, the strike-ottl bar being provided with adjustable members to shape the road surface.

A still further object of the invention is to provide a road machine including a roller employed for rolling a surface, the roller being so constructed that the machine is propelled by the contact of the roller with the surface under treatment.

lV ith the foregoing and other objects in view which will` appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood Y thatr changes in the precise en'ibodiment of the in` vention herein disclosed, may be made within the scope of what isV claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure 1 is a plan view of a machine constructed in accordance with the invention.

Figure 2 is a rear elevational view thereof.

Figure 3 is a front elevational view. j

Figure 4 is an end elevational view of the machine.

Figure 5 is a sectional view taken on line 5-5 of Figure 1. l

Figure 6 is an elevational view illustrating the adjustable wheel support.

Figure 7 is a further elevational view of the adjustable wheel support.

Figure 8 is' an elevational view illustrating the forward wheel of the machine.

Figure 9 is a plan view illustrating the adjustable members of the strike-off bar.

Referring to the drawings in detail, the frame of the machine includes end bars 5 which are formed preferablj7 ot channel ironinaterial, which bars are connected by the transversely disposed angle bars (3 arranged adjacent to the outer ends of the bars 5 as Serial No. 72,968.

clearly shown by Figure 1 of the drawings. Pairs of spaced angle bars indicated at 7 are arranged in spaced relation with the angle bars t and are disposed at the forward portion of the machine, the upstanding flanges S of the bars 7 acting as supports for the bell crank levers 9 which are pivotally mounted therebetween, and which constitute means for moving the. forward supporting wheels 9 and the rollers oit' the machine upwardly or downwardly to adjust the roller forming a part of the machine, to be hereinafter more fully described.

These supporting wheels are mounted wit-hin the arms 10 which are pivotally secured within the brackets 11 which in turn are secured to the bars 6 and 7.

Rods 1Q are connected with the bell crank levers 9 and have connectionwith the arm 13 pivotally mounted between the bars 7 as clearly shown by Figure 3 of the drawings. Connected with the arm 13 is a controlling rod 1st that extends laterally and is provided with teeth 15 that engage the flange 16 to hold the rod 14; in various positions of adjustment, there being provided a handle 17 at the free end of the rod 14 to permit the rod to be readily operated.

From the foregoing it will be obvious that by moving the rod 14, the wheels may be swung on their pivots to elevate or lower the forward portion of the machine at the will of the operator. Secured to the forward portions of the bars 5, are depending arms 18 that have connection with the scraping bar 19 commonly known as a strike-olf bar. Flangcs Q0 are arranged adjacent to the ends of the bar 19 and provide guides for the pivoted sections 21 which are provided with outwardly extended curved portions 2Q. Connected with these pivoted sections 21 are rods 23 that have their upper ends connected with the bell crank levers 24 pivotally mount-ed within the bracket members' 25 that are securedv to the flange :26 1to1-ming a part of the bar 6.

Arranged substantially intermediate the ends of the bar 6 is a bracket member 27 that provides a support for the arm :28 that has pivotal connection therewith, the ends of the arm 28 being pivotally connected with the rods 29 in such a way that movement of the rods 29 will result in relative movements of the bell crank levers 24 to raise and lower the pivoted sections 21. Since'these pivoted sections :21 are arranged at the ends of the scraper 19, it Will be obvious that they Will act to scrape the edges of the road surface tEo curve the same and shape the road surace.

The arm 28 is operated by the rod 30 which is connected thereto as at 31, the opposite end of the rod being connected to the lever 32. v

At the ends of the machine are frames 33', there being provided a similar frame 34 arranged intermediate the side edges of the machine, which frame supports bearings 34 in which the shaft 35 is mounted. At the ends of the shaft 35 are the Wheels 36 that are provided with handles 37 to permit the device to be manually operated., however it Vis to be understood that by arranging suit- .able lgearing not shown, the device may be motor controlled.

Bearings 38 are also carried by the frames` and accommodate the shaft 39 that carries the sprocket WheelsI 40 at its ends,\vhich sprocket Wheels transmit rotary inotionto the relatively large sprocket `Wheel 4l, through the medium of the chains 42. rlhese sprocket Wheels 41 are mounted on the'outer ends of shaft 43, which shaftI operates in bearings 44 supported onthe bars 5, the

shaft. acting asa support forv the` roller 45.

that extends the entire length ofthe machine for rolling the road surface' over Whichthe i machine is moved.

Rotary movement is transmitted from the' shaft 35 to the shaft 39 through the sprocket Wheels 46 and 47, the chain 48 being provid-f ed to connect the sprockets 4 6 and 47 as Vclearly shown by Figure 5.

Frames 49 extend above the frames 33` and n 34 at both `ends of the machine and engage the upper portions of the bearings 84 to further secure the bearings 34 against movement, and act as Vhand rails for the operators.

These rails also act as meansV for propelling the machine by the operators grasping the vrails to push the machine when the roller is elevated. y

At the rear of the machine are supporting Wheels 50 that are pivotally mounted at the lower ends of the bell crank levers 51 which in 'turn are pivot-ally mounted Within the bracket members 52. Mounted above the vWheels are bell crank levers 53 that are connected With the bell crank leversl 51 by means of the links 54. Rods 55 connectivith" the bell crank levers 53, the rods 55 being also connected with the pivot-ed arm 56 that i is mounted on the frame of the machine.

Y Connected with the upper end of ltht` arm 56 is a controlling rod 57 to which the flexible member 58 is connected, which flexible member operates over the. drum 59 mounted on shaft 60. A ratchet 6l is'secured at oney .tions of adjustment when the flexible mempositions with respect to the machine, to .raise or lower the roller 45 With respect to the road surface. y

Connected With each of the bell crank levers 51 is a coiled spring 63 that has its upperend connected to an upstanding frame 64, the coiled springs acting to permit movement of the frame and roller independently ofthe Wheels 50, to the end that should the roller pass over a solid obstruction in the road surface that would tend to lift the Wheels 50 from thetrack, on which they operate, such movement of the roller would be compensated 'for through the action of the springs. Y

It might be further stated that the Wheels that supportthe machine are formed With lianges so that they may move overthe side forms of theroad.

From the. foregoing detail description, it

base andthen pressed down to the base,A

procuring an even surface for the road and a road bed of uniform density. Manually the machine Vis operated with tivo men by the use of fly wheels 86 operated in connection with frames' 49 used as hand Y rails. Only two voperations are necessary. The lirst to strike off and the second to compress. The second op-eration is performed when the concrete is in the desired stage for compression, and with the roller only in contact and propelled in either direction. In moving the machine from the strike off part of the job to the' compressing part. or vice versa, the roller and strike off blade are velevated and the machine is propelled on vthe track by th-e use of` frame 49 used as yhand rails.

claim: y

l. In a surface AWorking machine, a Wheel supported frame, rollerl supported .on the frame anddisposed in spaced relation 'with the ground surface', means fer operating the supporting Wheels of thefraine to Vlovver the frame fand bringthe roller intoY engagement with the surface overv which the machine is moving, andmeans for apl'ilyingpower to the roller to move the frame and roller over the surface being rolled.'r

2. In a machine' of the class described, a base. a frame,.a`scraping blade at the lforward portion ofthe frame, and adjustable scraping members at the ends of scrapblade, adjustable supporting Wheels adju'stably mounted on the frame and adapted to support the frame, a roller mounted Within the frame, means to adjust the supporting wheels to raise and lower the frame to adjust the roller and scraping blade with respect to the surface above the base over which the machine is moving, means to simultaneouslyv adjust the scraping members to raise and lower the members independently of the scraping` blade, and means to rotate the roller and propel the machine.

3. In a machine of the class described, a base, a frame, a pair of adjustable wheelsl adj ustably mounted on the rear of the frame, a pair of adjustable wheels adjustably mounted on the forward portion of the frame, a roller mounted on the frame, a scrapingblade at the 'forward portion ot the frame, and adjustable scraping members at the ends of scraping' blade, means to adjust the adjustable wheels to raise and lower the frame to adjust the roller and scraping blade with respect to the surface above the base over which the machine is moving, means to simultaneously adjust the scraping members independently of thel scraping` blade, means to permit movement of the rear adjustable wheels independently of the trame, and means to rotate the roller and propel the machine.

In testimony that l claim the foregoing as my own, I have hereto affixed my signature.

DAVID W. Bows. 

